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Re: [TowerTalk] quad w/dipole reflector

Subject: Re: [TowerTalk] quad w/dipole reflector
Date: Fri, 10 Aug 2012 10:43:49 -0400 (EDT)
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Bill, K4XS/KH7XS is wondering about a dipole reflector behind a quad driven 

A quick Google search for quagi finds: 

The VHF Quagi 
from an article by Wayne Overbeck, K6YNB in QST April 1977 

A snippet: 

"Before the next West Coast VHF Conference, the ill-performing, store-bought 
Yagi was modified in only one way. the driven element was removed and replaced 
with a quad type loop of no. 12 wire. There was no matching of any kind. A 
type-N connector was soldered in the center of the quad loop bottom side, and 
it was fed directly with RG-8/U. Now the SWR and gain both looked better. In 
the gain contest at the next VHF Conference, this antenna was measured at 9.8 
dB over a dipole. Simply eliminating the gamma-matched dipole and adding a quad 
loop had increased the gain 3.4 dB!!! " 

Now, understand, this was done to a yagi for 432 mhz........... Still 
interesting reading. 

Good luck with your project Bill. 

73 es GDDX 

K9WN Jake 


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